Pneumatic dispatch carrier



July 31. 1928. I D.- J. M -MILLAN INEUIATIC DISPATCH CARRIER Filed May 1927 Patented July 31, 1928.

' UNITED STATES DANIEL J'. MACMILLAN,'OF BROOKLYN, NEW YORK.

IPNEU MATIC DISPATCH CARRIER.

Application filed May 2,

This invention relates to the carriers used for conveying small articles such as documents or money, through tubes by forming a current of air through the tube, sometimes by pressure applied at one end of the tube, and sometimes by exhausting the air at one end of the tube.

The object of the present invention isto provide an improved construction of the general form of the tube or carrier body, that will make it comparatively rigid to withstand shocks and pressure, at the same time will provide a somewhat yielding outer face; which arrangement will facilitate the assembling of the several parts, and also the replacement of certain parts in case of injury by simple means.

A further objectis to provide a tube of this character that is somewhat oblong in section to facilitate. the carrying of certain documents known as files, that can be bent to readily fit into the carrier.

In the accompanying drawing showing embodiments of my invention:

Fig. 1 is a perspective view, partly in section.

7 Fig. 2 is a longitudinal section broken at the middle part.

Fig. 3 is a middle transverse section en larged.

Fig. 4 is fragmentary section.

Fig. 5 shows a modification.

As shown in the drawing the'inain body of the carrier consists ofa tube or cylinder 6 of leather, that may have a longitudinal seam at 7 made in any preferred way such as stitching. One end of this leather tube is closed by the leather cup member Shaving a flange portion 9 adapted to surround the end ofthe tube 6; and which may be secured by rivets 10. I

A leather tube of this character is notv of suilicient strength to retain its shape; and

to strengthen it I provide a lining tube 12 preferably formed of fiber that is comparatively rigid; and molded in one piece. This tube 12 is of a size to tightly fit in the leather tube, and its inner end rests against the end member 8 but is .not secured to either member at this end. The lining tube is preferably secured to the leather tube at a few places at the'open end of the tubes At this end a band 13 of leather is preferably placed around the leather tube and se-.

cured thereto by suitable means, such as rivets 14. But these rivets do not 'pass 1927. Serial No. 188,071.

through the inner tube 12, being applied before the lining tube is inserted. A closure 18 applied at the open end shown in the form of a disk 15 that may be of leather, attached by a strap hinge 16 that may be a strip of leather. To lock the closure a simple strap 17 is secured at this end to engage a buckle 18 on the outer face of the disk. As stated it is desirable to have the lining'tube 12 removable, as in case of a hard blow or pressure on the carrier the leather would yield without breaking but the fiber tube would be liable to crack or break. Therefore it can be removed and another substituted. locking the lining tube in position comprises rivets 19, passingthrough the hinge strap 16 and through the inner tube 12, the main leather tube 6, then through this strap The means shown for 16 and then through the outer ring 13 of 1 the same manner by a rivet '20 passing through the outer ring 13, then through this strap, through the leather tube 6 and the lining 12. This also has its prongs on the outside for easy removal.

Tubes of this character require'a packing rlngto cause them to fit air-tight in the tubes through which they pass. As shown a pair of fur rings 21, 22, have the hide portion secured to the leather tube 6 bysuitable means such as glue. The arrangement of the outer leather tube will permit tacks or pins to pass through this hide at the meeting ends of these rings to further secure them to the leather tube.

In Fig. .5 a similar construction is shown,

but the general form of the tube is that of an ellipse with the longer faces somewhat flattened. It will be readily understood that the construction of this tube is sul stantially identical with that shown in the other views. It comprises the inner tube 12 of fiber withcomparatively fiat opposite sides 30 and 31 on rounded ends to the section. The leather tube 6 is formed in the same manner having the joint at 7 and the buffer rings 21*. The end members may be formed identical with. that shown in Figs. 1-4 but made in this shape instead of circular. The flattened form Will receive documents such as files or records in a fiat condition Without rolling or bending as would be necessary With cylindrical carriers; or a document or paper could be given a single bend to fit in this receptacle It Will thus be seen that K have provided a carrier, that is constituted of a combination of tubes forming the body, in which the inner lining tube is stiff and rigid, While the outer tube is somewhat resilient and has a cushioning effect, at the same time it would strengthen the combination. It Will be further seen that this lining is readily detachable to substitute another in case it becomes injured. The lining being of fiber Will provide a smooth surface to permit the easy insertion and removal of the articles, as no other rivets or other fastening means are exposed on the inner Wall of the fiber tube, except the three smooth rivet heads that hold the tube in place.

What I claim is:

1. A pneumatic dispatch carrier comp ris-' 7 ing a cylinder formed of leather. a closure posed of a cylinder of comparatively rigid fiber secured to the leather cylinder, and a closure for the open end of the carrier.

2. A pneumatic dispatch carrier comprisinga cylinder formed of leather, a closure for one end of the carrier that is secured to the leather cylinder, an inner tube composed of a cylinder of comparatively rigid fiber secured to the leather cylinder and a closure for the open end of the carrier, a reenforc-v ing band of leather secured at the open end of the leather tube but independent of the inner tube and its attachment to the said leather tube.

3. A pneumatic dispatch carrier comprising a cylinder formed of leather, a closure that is secured to the leather cylinder, an inner tube composed of a cylinder of comparatively rigid fiber that is detachably secured to the leather cylinder at the open end only of the leather cylinder, and a closure for the open end of the leather tube.

a. A pneumatic dispatch carrier comprising a. cylinder formed of leather, a cup closure of leather for one end of the cylinder having the flange portions secured to the leather tube only, an inner tube composed of a cylinder 01"- comparatively rigid fiber that is detachably secured to the leather cylinder at the open end only of the leather cylinder, and a closure for the open end of the leather tube.

5. A pneumatic dispatch carrier comprising a cylinder formed of leather, a cup closure of leather for one end of the cylinder having the flange portions secured to the leather tube only, an inner tube composed of a cylinder of comparatively rigid fiber that is detachably secured to the leather cylinder at the open end only of the leather cylinder, and a closure for the open end of the leather tube, a pair of resilient bands of fur secured to the leather tube only.

6. A pneumatic dispatch carrier compris ing a cylinder formed of leather, a cup closure of leather for one end of the cylinder having the flange portions secured to the leather tube only, an inner tube composed of a cylinder of comparatively rigid fiber that is detachably secured to the leather cylinder at the open end only of the leather cylinder, and a closure for the open end of the leather tube, apair of resilient bands of fur secured to the leather tube only, a reenforcing band of leather secured at the open end of the leather tube independent of the inner tube and its attachment to the said leather tube.

7. A pneumatic dispatch carrier comprising a cylinder formed of leather, a closure for one end of the carrier that is secured to the leather cylinder an inner tube composed of a cylinder of comparatively rigid fiber secured to the leather cylinder, and a closure for the open end of the carrier, the carrier being substantially oval in cross section.

8. A pneumatic dispatch carrier comprising a cylinder formed of leather, a cup closure of leather for one end of the cylinder having the flange portions secured to the leather tube only, an inner tube composed of a cylinder of comparatively rigid fiber that is detachably secured to the leather cylinder at the open end only of the leather cylinder, and a closure 'for'the open end of the leather tube, a pair of resilient bands of fur secured to the leather tube only, a reenforcing band of leather secured at the open end of the leather tube independent of the inner tube and its attachment to the said leather tube, the carrier being substantially oval, in cross section. e

9. A pneumatic dispatch carrier comprising a cylinder formed of leather, a closure for one end of the carrier that is secured to the leather cylinder, aninner tube composed of a cylinder of comparatively rigid fiber secured to the leather cylinder, and a closure for the open end 01 the carrier, the carrier being substantially oval in cross section With opposite parallel sides.

10. A pneumatic dispatch carriercomprising a cylinder formed of leather, a cup closure of leather for one end of the cylinder having the flange portions secured to the leather tube only, an inner tube composed of a cylinder of comparatively rigid fiber that is detachably secured to the leather cylinder at the open end only of the. leather cylinder, and a closure for the open end of the leather tube, a pair of resilient bands of fur secured to the leather tube only, a reenforcing band of leather secured at the open end of the leather tube, the carier being substantially oval in cross section with opposite parallel sides.

11. A pneumatic dispatch carrier comprising an outer cylinder formed offlexible resilient non-metallic material, a closure for one end of the carrier that is secured to the said cylinder, an inner tube composed of a cylinder of comparatively rigid fiber secured to. the said cylinder, and a closure for the open end of the carrier.

12. A pneumatic dispatch carrier comprising an outer cylinder formed of flexible r-esilient non-metallic material, a closure for one end of the carrier that is secured to the said cylinder, an inner tube composed of a cylinder of comparatively rigid fiber secured to the said cylinder, and a closure for the open end of the carrier, a reen'fo-rcing band of leather secured at the open end of the outer tube but independent of the inner tube and its attachment to the said inner tube.

13. A pneumatic dispatch carrier comprising an outer cylinder formed of flexible resilient non-metallic material, a closure that is secured to the said cylinder, an inner tube composed of a cylinder of comparatively rigid fiber that is detachably secured to the said cylinder at the open end only of the of-the outer tube. a

14. A. pneumatic dispatch carrier comprising an outer cylinder formed of flexible resaid cylinder, and a closure for the open end silient non-metallic material, a closure. for.

' oneend of the carrierthat is secured to the said cylinder, an inner tube composed of a cylinder of comparatively rigid fiber secured to the said cylinder, and a closure for a the open end of the carrier, the carrier being substantially oval-1n cross section; V

15. A pneumatlc dispatch carrier comprising an outer cylinder formed of flexible re silient non-metallic material, a closure for i one endof the carrier that is secured to the said cylinder, an inner tube composed of a cylinder of comparatively rigid fiber secured. 

